Date: Mon, 1 Jul 2002 12:09:08 -0700 (PDT) From: Julian Elischer <julian@elischer.org> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: freebsd-current@FreeBSD.ORG Subject: Re: Weird panic (possibly KSE related) Message-ID: <Pine.BSF.4.21.0207011208380.91887-100000@InterJet.elischer.org> In-Reply-To: <200207011902.g61J2r6k019380@apollo.backplane.com>
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looks like 2 processors runing the ddb at the same time...
On Mon, 1 Jul 2002, Matthew Dillon wrote:
> I've been doing buildworld tests on an SMP build, 2-cpu 2550 w/ 2G of
> ram configured. It gets through two or three builds and then crashes.
>
> Unfortunately the crash seems to be completely undebuggable. It drops
> into DDB> but the serial port is completely screwed up and I can't type.
> Hitting <return> gives me colons and semicolons at db> prompt. Changing
> baud rates does not seem to help.
>
> This has occured twice. I am going to try dropping back to a standard
> console to see if I can get better debugging. I don't know if this is
> KSE related or not.
>
> I've included the serial console output.
>
> -Matt
>
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; lapic.id = 01000000
> fault virtual address = 0xb
> fault code = supervisor write, page not present
> instruction pointer = 0xd35:0xe
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; lapic.id = 01000000
> fault virtual addrepsasn i=:
> t nceode!
> p=
>
> cs
> puupeirdv =is o1r; lraeapdi
> n c, .pidag e= n0o0t00 0pr00es0e
> tDe
> niugnsgetrru("cptaioninc "p)oi
> Stopped at Debugger+0x46: xchgl %ebx,in_Debugger.0
> db> ;;:
>
>
>
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